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Guest
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After replacing the gasket, I am getting P0171/P0174 codes, but I do not have any vacuum leaks. What could cause this?
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07-15-2013, 06:25 AM
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Moderator
Join Date: Jul 2012
Location: New England
Posts: 3,189
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Low fuel pressure or a bad MAF can also cause lean codes. Do you have an exhaust leak because that can also cause false lean codes
- Nick |
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07-15-2013, 06:25 AM
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